* Fixing Internal Links

Internal links, like those found on [Available Scripts](https://facebook.github.io/create-react-app/docs/available-scripts)
use absolute urls and therefore link to https://facebook.github.io/docs/deployment instead of
https://facebook.github.io/create-react-app/docs/deployment.

* changing to markdown links and fixing various broken internal links

Fix #5613

* Ignore test files from reported type errors

* Ignore setup proxy & test files

* Specify types in package

* Do not remove types file on eject

* Stop copying types into generated project

* Reference react and react-dom

* Reference node types

* Install node types as well

* Restore copying

* Add Node to the list of installed types

* Reference Jest types

* Remove jest types from install

* Remove jest from CRA install

* Remove Jest reference and let user do this themselves

* Stop copying types file

* Add types key to package.json

* Add appTypeDeclarations and create when missing

* Rename declarations file

* Add Jest back to install instructions

* Minimize diff

Fix #5576

* Add TypeScript app creation

* Actually specify new extension

* Check for ts and tsx

* Fix types in default service worker file

* Mirror changes in JS version of SW

* Separate templates

* Use separate template directory

* Remove unused function

* Add a tsconfig file to the template

* Test install of typescript

* Add e2e for TypeScript

* Check for index.tsx to make sure we're not in the JS template

* Ensure TypeScript doesn't leak into normal installs

* Ignore some files

* Print version of CRA

* Fix script

* Add new template

* Move test to correct location

* Use `verifyTypeScriptSetup` routine to populate files

* Ensure tsconfig is created

* Don't resolve TS files if it's not detected in the project

* Automatically create tsconfig.json file for user

* Remove always false check

* Add missing file

* Don't filter paths too early

* Add .pnp folder ro gitignore file

Avoid pushing .pnp folder to git

* Add .pnp.js to ignore list

* Use TS to resolve tsconfig extends

* Prevent modifications to original tsconfig

* Print friendly error

* Enable TypeScript json module resolver

* Update verifyTypeScriptSetup.js